リパース感受性ポリマー三層ナノゲル"オンデマンド"の薬剤投与用
Meng-Hua Xiong1, Yan Bao, Xian-Zhu Yang
1CAS Key Laboratory of Soft Matter Chemistry and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
Journal of the American Chemical Society
|February 7, 2012
まとめ
研究者らは,標的型抗菌剤の投与のためにリパースに敏感なナノゲルを開発した. このスマート・ドラッグ・キャリアは,細菌感染部位に抗生物質を特定して放出し,様々な感染症の治療効果を高めます.
科学分野:
- バイオマテリアル科学 バイオマテリアル科学
- ナノテクノロジー ナノテクノロジー
- 感染症 感染症は感染症です.
背景:
- 標的型抗菌剤の投与は,細菌感染症の治療において依然として課題となっています.
- 従来の抗生物質には特異性がないことが多いため,対象外効果と有効性の低下につながる.
- スマート薬物投与システムの開発は,治療結果を改善するために不可欠です.
研究 の 目的:
- 標的型抗菌剤の投与のために,リパースに敏感な新しいポリマー三層ナノゲル (TLN) を開発する.
- バクテリアの存在に反応する抗生物質の制御された放出を調査する.
- 細胞外および細胞内細菌感染症の治療におけるTLNの有効性を評価する.
主な方法:
- モノメトキシポリ (((エチレングリコール)) -b-ポリ (((ε-カプロラクトン)) と二機能のモノマーを用いたアームファースト手順によるTLNの合成.
- リパースを分泌する細菌 (Staphylococcus aureus) の存在と欠如におけるTLNの薬剤を放出する性質の特徴化.
- バンコマイシンの放出とS. aureus.に対する抗菌性のインビトロ評価.
- TLNの薬剤を感染した細胞に投与し,細胞内細菌を排除する能力の評価.
主要な成果:
- 合成されたTLNは,抗生物質の早期放出を効果的に防止しました.
- TLNはリパースに敏感な分解を証明し,S. aureus.の存在に特異的に24時間以内にカプセル化されたバンコマイシンを放出しました.
- S. aureusの成長の有意な阻害が観察されました.
- TLNは,薬物を感染した細胞に投与し,細胞内細菌を効率的に殺すことができました.
結論:
- 開発されたリパース感受性TLNは,標的型抗菌剤の投与のための新しい戦略を提供します.
- このアプローチは,リパスを分泌する細菌によって引き起こされる細胞外および細胞内細菌感染症の両方を治療するための安全で効果的な普遍的な方法を提供します.
- TLNシステムは,抗微生物治療の進歩に期待を寄せている.
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